On the definition of almost characters
Representation Theory
2015-12-24 v1
Abstract
We define the almost characters of G(F_q) where G is a reductive connected group over a finite field F_q as explicit linear combinations of irreducible characters. Previously these were defined assuming that the centre of G is connected.
Keywords
Cite
@article{arxiv.1512.07318,
title = {On the definition of almost characters},
author = {G. Lusztig},
journal= {arXiv preprint arXiv:1512.07318},
year = {2015}
}
Comments
11 pages